<th:block th:fragment="frag(collapse)">
	<div class="pull-right box-tools">
		<button type="button" class="btn btn-default btn-xs pull-right" data-widget="collapse" data-toggle="tooltip" title="" style="margin-right: 5px;" data-original-title="展开/收缩">
			<i class="fa " th:attrappend="class=${collapse ? 'fa-plus' : 'fa-minus'}"></i></button>
	</div>
</th:block>